The first days of the session that I tried worked great.
Slept the first night do in 4 hours, for the rest of the tests were also good results.
But literally after 1-2 days the effect began to decline, and after a week and all came to naught.
I understand that the brain quickly sorted out with a new device and included their "silencers". Adapted.
Dear friends, what would you advise to do?